Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D485550 | Media gateway | Masaru Deguchi, Katsumi Kayasima | 2004-01-20 |
| D483340 | Electronic switching equipment | Masaru Deguchi, Hideki Kanamori | 2003-12-09 |
| D479202 | Switching equipment | Tsuneo Fujikura | 2003-09-02 |
| D474771 | Media converter | Masaru Deguchi, Kentarou Tsuda | 2003-05-20 |
| D474772 | Media converter | Masaru Deguchi, Katsumi Kayasima | 2003-05-20 |
| D474188 | Stand for a media converter | Masaru Deguchi, Kentarou Tsuda | 2003-05-06 |
| D473196 | Switching equipment | Tsuneo Fujikura | 2003-04-15 |
| D441728 | Electronic switching apparatus | Tsuneo Fujikura | 2001-05-08 |
| D441729 | Electronic switching apparatus | Tsuneo Fujikura | 2001-05-08 |
| D433677 | Telephone exchanger | Haruo Tsuge, Kazuo Ikeda, Kentaro TSUDA | 2000-11-14 |